Periplaneta Americana. American cockroach's are also known as waterbugs, flying water bug and, in some areas of the South, the palmetto bug. It is the largest of the common species, growing to 1.5 inches or more in length. It is reddish-brown, with a pale brown or yellow border on the upper surface of the pronotum.
Thanks for the question. The radial artery in the wrist can be used to measure the blood pressure. But in my opinion, the brachial artery blood pressure measurement is better than radial artery for the following reasons: 1.The blood pressure at the wrist is higher for systole, lower for diastole, and about the same for mean or average pressure. The amount of difference depends on the stiffness of the arteries.ut in my opinion, the brachial artery blood pressure measurement is better than radial artery for the following reasons: 1. The blood pressure at the wrist is higher for systole, lower for diastole, and about the same for mean or average pressure.
A pressure of 100 mm Hg, for example, would be enough to force the mercury column upward for a distance of 100 mm. To measure arterial blood pressure, the cuff of the sphygmomanometer is usually wrapped around the arm so that it surrounds the brachial artery. Air is pumped into the cuff until the cuff pressure exceeds the pressure in that artery. As a result, the vessel is squeezed closed, and its blood flow stopped.